Cambridge Primary Sample Test
For use with curriculum published in
September 2020
Science Paper 2
Stage 6
35 minutes
Name
No additional materials are needed.
INSTRUCTIONS
• Answer all questions.
• Write your answer to each question in the space provided.
• You should show all your working on the question paper.
INFORMATION
• The total mark for this paper is 40.
• The number of marks for each question or part question is shown in brackets [ ].
Science_S6_02/8RP
© UCLES 2020
2
1
The diagram shows a food web.
lion
jackal
goat
kite
wild cat
rabbit
grass
snake
mouse
(a) Which animals in the food web eat the mouse?
[1]
(b) Which animals get their energy directly from the grass?
[1]
(c) This food web includes many food chains.
Write down a complete food chain that includes the snake.
[2]
(d) Rabbits eat grass that has been sprayed with a poisonous chemical.
Explain how this poisonous chemical reaches the body of the lion.
[1]
© UCLES 2020
S/S6/02
3
2
Safia mixes solids with water and observes what happens.
solid
observations when solid and water are mixed
A
mixture bubbles and gets warm
B
mixture does not change colour and stays the same temperature
C
the solid dissolves and the mixture gets colder
D
mixture remains green
E
mixture turns colourless and gets warmer
(a) Which solids have a chemical reaction with water?
[2]
(b) Magnesium is added to dilute hydrochloric acid.
This makes bubbles of hydrogen and a colourless solution of magnesium chloride.
Write down the name of one of the products of this reaction.
[1]
(c) Burning wood is a chemical reaction.
Suggest one piece of evidence that shows burning wood is a chemical reaction.
[1]
© UCLES 2020
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[Turn over
4
3
The diagram shows the forces acting on an aeroplane.
upthrust
air
resistance
thrust
weight
(a) Which force is the effect of gravity on the mass of the aeroplane?
[1]
(b) The thrust is greater than the air resistance.
Circle what happens to the speed of the aeroplane.
remains constant
decreases
increases
[1]
(c) The aeroplane is in level flight.
The aeroplane is not moving up or down.
Which two forces must be equal in size?
and
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[1]
5
4
Changes of state are physical changes.
(a) Complete the sentence to explain why melting is a physical change.
Melting is a
process because the liquid formed can be
changed into a solid by
.
[2]
(b) Describe one similarity between boiling and evaporation.
[1]
(c) Describe two differences between boiling and evaporation.
1
2
[2]
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6
5
Heart rate is measured in beats per minute, bpm.
Angelique investigates the average heart rate of the children in her class.
She records her results in her notebook.
Look at her results.
Priya 67 bpm aged 11
Lily 73 bpm aged 10
Mike 78 bpm aged 11
Chen 87 bpm aged 10
Mia 70 bpm aged 11
Oliver 75 bpm aged 11
Ahmed 80 bpm aged 10
Safia 72 bpm aged 10
(a) Complete her results table.
name of
child
gender
Priya
female
Mia
female
Lily
female
Safia
female
Mike
male
Oliver
male
Chen
male
Ahmed
male
age of child
in years
[3]
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7
(b) The heart rate results show some patterns.
Describe two patterns shown by the results.
1
2
[2]
6
Soils contain water and organic plant material.
(a) What is the name of the organic plant material found in soil?
[1]
(b) Write down two other parts of soil.
and
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[2]
[Turn over
8
7
Chen investigates the floating and sinking of objects in water.
In his first experiment Chen
•
•
•
measures the mass of a solid cube
puts the cube into a container of water
records if the cube floats or sinks.
Chen repeats this experiment with cubes of different mass and of different
material.
Here are his results.
mass of
cube in g
material of
cube
does it sink or
float?
100
wood
float
300
wood
float
100
steel
sink
200
steel
sink
(a) What piece of equipment does Chen use to measure the mass of the cube?
[1]
(b) Chen thinks the greater the mass of the cube the more likely the cube will sink.
Is he correct?
Use information from the results table to explain your answer.
[1]
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9
(c) Chen wants to make a piece of steel float.
Describe how he could change the shape of the steel cube to make it float.
You may draw a diagram to help you answer the question.
[1]
8
Carlos adds salt to cold water.
It takes one hour for the salt to dissolve to make a salt solution.
(a) Describe how Carlos could dissolve the salt faster.
[1]
(b) Salt solution contains salt particles and water particles.
Tick () the boxes next to the two correct statements about salt solution.
salt particles are not moving
water particles surround salt particles
water particles are moving
salt particles are arranged in a regular pattern
[2]
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10
9
There are three types of rock found on the Earth’s surface.
One of the types of rock is called sedimentary.
(a) Name the other two types of rock.
1
2
[2]
(b) Look at the table. It shows the description of some rocks.
rock
description
A
This rock is found in layers and is very crumbly.
B
This rock is very hard and contains crystals.
C
This rock is black and very shiny.
D
This rock is soft and contains very small particles.
Which two rocks are sedimentary?
[1]
(c) Aiko finds this fossil in some sedimentary rock.
Describe how fossils are formed in sedimentary rock.
[2]
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11
10 Inhaled air is the air we breathe in.
Exhaled air is the air we breathe out.
The table shows how inhaled and exhaled air are different.
gas
inhaled air
exhaled air
0.04%
4%
oxygen
21%
16%
water vapour
0.5%
5%
carbon dioxide
(a) Complete these sentences about exhaled air.
The percentage of carbon dioxide in exhaled air is
than in inhaled air.
The percentage of water vapour in exhaled air is
than in inhaled air.
[1]
(b) Explain why the percentage of oxygen in exhaled air is less than in inhaled air.
[1]
© UCLES 2020
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12
11 Pierre sees a fish in a river.
The diagram shows part of a ray of light from the fish to Pierre’s eye.
(a) Complete the diagram to show the ray of light entering his eye.
Pierre’s
eye
surface of the water
air
water
ray of light
fish
[1]
(b) Circle what happens to the ray of light at the surface of the water.
condensation
evaporation
reflection
refraction
[1]
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© UCLES 2020
S/S6/02